Based on the historical population data for ZIP code 92120 in San Diego, California, the area has experienced consistent population growth over the past decade, with the population increasing from 25,343 in 2010 to 27,976 in 2022. The population density has also increased during this period, from 3,935.25 people per square mile in 2010 to 4,344.1 people per square mile in 2022.

Given the ZIP code's size of 6.44 square miles and the 2022 population density of 4,344.1 people per square mile, the area can be classified as urban. Urban areas are characterized by multi-story residential buildings, commercial buildings, and high levels of infrastructure and services. The lifestyle in such areas is typically fast-paced, diverse, and culturally rich, suited for individuals and families who enjoy vibrant city life with extensive public transport, restaurants, theaters, and museums.

The estimated number of housing units corresponding to the 2022 population, based on the national average household size of 2.61, is approximately 10,719. This suggests a relatively high density of housing units in the area, which is consistent with the urban classification.